Pumping-engine



(No Model.)

3 Sheets-Sheet; 1. G. BALDWIN.

PUMPING ENGINE.

Patented A-u N. PETERS. Fhunrmhugmphw, wnmngmn, D. c.

(No Model.) 3 Sheets-Sheet i2q C. W. BALDWIN.

PUMPING ENGINE.

No. 368,442. Patented Aug. 16, 1887.

N. PEYEHS. Phmovumognphe 3 Sheets-Sheet 3.

(No Model.)

C. W. BALDWIN.

PUMPING ENGINE.

ented Aug. 16, 1887.

vUNTTED STATES PATENT OFFICE.

CYRUSv 7. BALDWIN, OF YONKERS, NEV YORK, ASSIGNOR TO THE HYDRAULICELEVATOR COMPANY OF CHICAGO, ILLINOIS.

PUIVIPING-ENGINE.

SPECIFICATION forming part of Letters Patent No. 368,442, dated August16, 1887.

Application filed June 25, 1886. Serial No. 206.246. (No model.)

To aZZ whom it may concern,.-

Be it known that I, CYRUs W. BALDWIN, a citizen of the United States,and a resident of Yonkers, in the county of W'estchester and State ofNew York, have invented certain new and useful Improvements in Pumping-Engines, of which the following is a specification.

My invention has for its object to combine a pumping-engine anddriving-engine in a compact space to secure greater efficiency, reducefriction, and facilitate the use ofthe drivingengine and pumping-engineseparately, the invention being intended for use especially inconnection with driving-engines employing an explosive gaseous mixtureas a motive power.

In the drawings, Figure 1 is a sectional elevation of a combined drivingand pumping engine,illustrating my invention. Fig. 2 is an externalelevation. Fig. 3 is a plan view.

The upper bed or frame, A, of the engine consists oi' a single cast-ingconstructed at one end to form a support for the cylinder B, adapted toreceive steam or an explosive mixture, and having near the opposite endsbearings for the crank-shaft C, provided with a tlywheel, D, at one endanda band wheel or pulley, E, at the other, the crank being connected bythe usual connecting-rod, F, to the pistonrod G, supported at the outerend by a crosshead, H, moving upon horizontal slides on the frame.

The parts above described constitute the parts of an ordinary steam orgas engine and may vary in construction.

The frame A is supported upon a bed, I, which is a hollow box or casingof cast metal with parallel sides and rounded front end, the open topbeing closed by the frame, which is securely fastened to the bed bybolts 1.

At the end of the bed nearest the crankshaft is an opening, m, adaptedto receive the cylinder or casing J of a pump,which may be ot' anysuitable character; but, as shown, it is the cylinder of a differentialpump having a trunk-piston, K, which slides through a packing-box at theinner end of the cylinder, the latter having an external flange, 2,which lies against and is bolted to the end of the bed I.

In brackets L, bolted to the end of the bed beneath the engine-cylinderB, turns a crankshaft, N, aconnecting-rod, M, being connected to thecrank of the shaft N at one end and to a cross-pin inside of thetrunk-pistou Kat the other, and extending longitudinally through thebed, which has an opening' at the rear end sufficient for the passageand play of the connecting-rod.

Upon one end of the crank-shaft N is a bandpulley, 3, around which andaround the pulley E passes a belt, 4, through the medium of which motionis transmitted from the driving crankshaft C of the engine to the shaftN of the pump.

By the arrangement above described I support both the engine and thepump upon a single bed, while the entire apparatus occupies but littlemore space in length than would be required for the bed of the enginealone. I also secure an extended throw of the pumppiston, and am enabledto use a connectingrod longer than the bed itself, thereby avoidinglateral thrust upon the pump-piston and greatly reducing friction andwear. In addition to this, the increased weight upon the bed I,resulting from the attachment ot' the pump thereto, imparts increasedstability and a better foundation for the frame of the engine, which isdesirable when the latter is run at high speeds and with a heavyfly-wheel.

In the construction of pump shown thev pump-cylinder is open at bothends, and has two channels or passages, 7 and 8, separated from eachother and communicating with the opposite ends of the open cylinder 5,one communicating with the port9 andthe other with the port 10 in thevalve-plate 11, secured to or forming part of the top ofthe cylinder J.

To the top ofthe cylinder J is boltedarectangular casing, L', surmountedby au air-vessel, Q, and divided horizontally by a Valveplate, 12, intotwo chambers, Y Y, springseated valves 13 14 15 closing the ports in thevalve-plates 11 and 12, as shown.A

To a neck or extension, 16, of the cylindcrJ is bolted an elbow, 17,connected with theinlet-pipe of the pump, a valve-plate, 18, providedwith ports and spring-seated valves 19, extending across the elbow orneck.

In the piston K is a partition, 6, forming, with the end 21 thereof, achamber, W, with an opening, 31, to which is tted a valve, 22,

lOO

spring-seated, and openings 32 put the chamber W in communication withthe contracted trunk of the piston. The outlet-pipe 20 of the pumpcommunicates with the chamber Y of the casing L. When the piston K movesin the direction of its arrow, Fig. 1, the valve 14 closes, the valves19 rise, and water flows into the forward end of the pump-cylinder,while water from the opposite end is forced through the channel 8 andchambers YYinto the pipe 20, the valves 15 and 13 rising. On the reverscmovement ofthe piston the water is forced from the forward end of Vthecylinder through the channel 7 and chambers Y Y, the valves 14 13rising, the valves 15 and 19 being seated, and a portion of -water alsoflowing through the port 31 in the end of the piston and through theopenings 32 into the space surrounding the piston within the cylinder-5.When a gas-engine is used in connection with the pumping mechanism, thereservoir R may be arranged in and concealed by the bed I, as shown,While the governor` S may be mounted upon a shaft having its bearingswithin the hollow frame A of the engine, thereby avoiding the exposureof these parts and econornizing space.

In order to maintain the driving -belt 4 taut, I use a belt-tightener,which is mounted upon or supported by the bed I. Thus a frame, T, havinga pair of arms, 3() 30, and a forked arm, 31x, at an angle to the arm30, rocks upon a rod, 32x, supported at 'one end by the bed I and at theother by a bracket, 33, bolted'to the bed. The forked arm 31x carries apivotcd thimble, 34, through which extends a screw, 35, provided with ahandwheel, 36, and fitting a pivotcd nut, 37, rocking upon a bracket,38, secured to the bed I.

Between the arms 30 30 of the frame T turns the tightening-pulley 39,which lies beneath the under portion of the belt 4, and may be forcedagainst thcv latter with any desired pressure by adjusting the frame Tby means of the adjusting-screw 35.

Although I have described the bed and frame as formed in the way shownand in two parts, they may be differently constructed and in one piece.It will be seen, however, that by forming the two beds separately, asdescribed, the engine may be removed and put upon another bed for use asan engine alone, and .that the pumping device may be separated from thebed, leaving the engine for use alone. The bed I and its pumpingdevices, being detachable from the engine, may be used alone as a pump,motion being imparted to the pulley E from any other driving pulley.

Although I have shown beltconnections, any suitable connections may beused for driving one crank-shaft from the other.

Without limiting myself to the` precise construction and arrangement ofparts shown, I claiml. The combination, in a pumping-engine,l of adriving-cylinder, piston, crank-shaft, and

connections, and a pumping-cylinder, piston, crank-shaft, andconnections, all carried by a single bed or frame, the parts of the pumpbeing supported thereby beneath the parts of the engine, the twocylinders being at the opposite ends of the structure, substantially asset forth.

2. The combination, with a supporting bed or frame, of a drivingcylinderand crankshaft supported in bearings at the upper portions of the frame,a pumping-cylinder and crank-shaft supported in bearings upon the framebelow those of the driving-engine, and

connections between the shaft of the drivingengine and the shaft of thepump, the two cylinders being at opposite ends of the structure,substantially as set forth.

3. The combination, with a driving-engine, of a hollow bed supportingthe driving-engine at the top of the bed, having bearings beneath thecylinder of the driving engine for the crank-shaft of thepump, aconnecting-rod eX- tending between the pump piston and the lowercrank-shaft through the bed, and connections between the twocrank-shafts, substantially as set forth.

4. The combination, with the driving engine, of a hollow bed supportingthe same at the top, a pump-cylinder extending through an opening at oneend of the bed and bolted to the latter, a crank-shaft supported at theopposite end of the bed below the cylinder of the driving-engine, and aconnecting-rod extending between the piston of the pumpingcylinder andthe lower crank-shaft, substantially as set forth.

5. The combination, with the driving-engine, of a hollow bed supportingthesame, a pumping-cylinder supported at one end of and extending intothe bed and provided with a trunk-piston, and a crank-shaft supported atthe opposite end of the be-d and connected to the trunk-piston by a rodextending through the bed, substantially as set forth.

6. The pumpingcylinder, piston, crankshaft, and connectingrod supportedupon a common bed, in combination with a separable frame or bedsupporting the cylinder and shaft and connections of a driving-engine,and supported upon the bed of the pumping-cylinder, and connectionsbetween the engineshaft and pump shaft, substantially as described.

7. The combination of the motor engine, hollow bed, pumping cylinder,and connections supported by the bed below the gas-engine, band-pulleysupon the crank-shafts of the pumping and gas engines, and a bandextending round both pulleys, substantially as set forth.

In testimony whereof I have signed my name Ato this speciticationin thepresence of two subscribing witnesses.

CYRUS YV. BALDWIN.

Witnesses:

WM. H. SWENY, .Toi-1N T. GAWRY.

IIO

IIS

